Air conditioner



Se t. 17 1957 M. B. CALKINS AIR CONDTONER 2 Sheetssheet 1 F11ed july 25, 1955 ATTORNEY Se t. 17, 1957 M B. CALKINS AIR CONDITIONER Fi1ed Ju1y 25 1955 2 Sheets-Sheet 2 ATTORNEY [Jnited States Patent This iI vel tiol1 elateS to ai cOnditOning devices of a genera1 type extensively in uSe to C001 and to circulate ail fof the promotion of hunlan comfort, and has as an object t Provide a novel and in1proved such unit of vvide utility and operative eectiveneSS.

A further object of the invention iS to provide a novel and improved ail 0nditionef in the forn1 0f a con]pact, portable uni adaptable f01' usc in automobiles, T00Ins, and all types of inhabited enclosures where a supply of electric ene gy is available.

A further object of the invention is t0 provide a novel and iInproved air conditioner adapted t0 utilize any one of a nunber of conventional, readilyavailable refrigerants 01 c00ling agents.

A futher object of the invention is to provide a novel and iTnproved ail conditipper that iS Sin1ple and inexpen Sive 0f roduction in a vvide Tange of Sizes fron1 knovvn and ayailabl facilities, elements, and materials' A further object of the invention iS to provide a novel al d improved air conditioneradaped fol 0perative association with c0nventionl electric energy supplies of dif f ring Standard potential8 A further object of the invention is 'O rovide a novel and imp Oved air conditioner characterized by a closed uid circulating 'Systen1 Tequiring n0 Teplenish111ent t() Inaintain the unit in operating condition, that is free fron1 0nerous Se vicing and Inaintenance Tequiren]ents, and that is p0sitive and i] i( ient in attainn]ent of the ends for which it is designed With the foregoing and other objects in view, my invention Consists i1 the construction, arrangement, and operative con1bination of elements as hereinafter Set forth, 1)0inted out in my claims, and illustrated by the accon Panying dfavvings, in vvhich Figure 1 is a fTont elevation 0f a typical embodimen 0f he invention as assembled and arranged ready for practical usel Figure 2 is a -front elevation of the ofganization according to ligu e l With the front Cover plate of the TSt `vi vV Temoved 0 discse inte rior constructions and arfangenents. v

Figure' 3- is a' vert cal Section through the organization according to the-preceding views taken Substantially on the indicated line 33 0f Figure 2 FiguT 4 is a top plan view of the 0rganization according t0 theprecedi 1g vievS vvith the cover Inelnbef of the unit- 0pent0...diScl0Se interior constructions and arrange In accOT(1a c ith the principles and to realize the Purposes 0f the invention, the c00perating elements of the in1proved airt conditioner are 'Supported by and enclosed Withil1 a pleferably rectangular, rigid housing having a b0ttom member 10, spaced, parallel side waus ll and lz xedly upstandingfrom opposite ma ginS of Said mem ber 10 a d a cq el 13 hing d to the upper ma gin of the Side vvall ll in positionto close against the upper Inar gin of the Side waH lz in spaced, arauel relation with the vall, as by neans of a latch 14. The n1en1bers 10 11 12, and 13 thus define a hollovv, Tectangular housing open at its opposite ends, inte!i0ly accessible thfough itS top area vvhen the cover 13 is unlatched fron1 the Side wall l2 and Svvllng t0'0pel1 OSition aS represented iI1 Figure 4, and 'arranged for convenient portage and 1)0Sitioning through the agency of a handle ls Secured to and centrany and exteriorly of the Cover 13' A closed iiuid circulation Systeln expediently col1 stituted as a Telnovable and replaceable unit is detachably n10unted Within the housing just described adjacent and to Substantially fill one open end thereof The Huid circulating SysteIn includes two conveniently identica1 Tadiator members 16 and l7, of any suitable particular construction characterized by the usual upper header 18 and 10Wer header 19 for each member, Spacedly Super- POSed in coplanar relation by neans of Struts 20 Secured to th e ends there0f and Sized, aS S0 superp0sed and cor- Telated, to Substania11y Span the vertical extent of the housing interior and to extend transvefsely of the housing leSS than the full Width thereof in a di3position Such as 0 Space said Inembers a Slight distance inwardly froln the Side vvall ll and a considerably greater distance invvardly fron1 the side vvall lz. Substantia11y as ill11strated The adjacent headers of the members l and 17 are Spaced apart S11fficiently to accoInn10date therebetvveen a uid pump 21 Supported by a bracket zz With the pump axiS perpendicular to the plane 0f said Inen1bers at about the mid-length there0f, and the input to Said pump iS connected by means of a OW line 23 With the 10Wer header 19 0f the upper radiator member l6 In the Space between the side vvall ll and adjacent ends of the nTenlbers 16 and 17, a ovV li11e 24 connects the upper header 18 of the unit 16 and the lower header 19 0f the unit l7 The outlet from the pump zl delivers through a 0W line 25 t0 the upper end of a c00ling chaInber z disp0sed vertically Within and 0 Substantially fill the space betvveen the housing side wall lz and the adjacent ends of the n1enlbers l( and 17 and a i low line 27 connects the lower end of tlle said Chambel 26 With the upper header 18 0f the radiator member 17. Thus, With the members 16 and 17, the headefs 18 and l9, the 0W lines z3, z4, z5, and 27, and the chamber z6 all mled with uid, the pump 21 is eectiVe to circulate the 1 lllid frofn the lower header 19 0f the member 16 through the chambeT 26 and then through the member 17 t0 retum from the 10Wer header 19 0f Said latte1' member and t0 the upper header of the membel 16. Along the side Wall rearwardly adjacent the chanber z a C0Inpartn]ent z8 is provided interiorly of the housing and extending the full depth of the latter for the acc0nn0- dation of suitable, conventional refrigerants or c00ling agents, Such aS Dry Ice, So-called "canned ice," and the like The con1paftn1ent z8 is closed at itS otherwise open upper end by TneanS Of the cover 13 and is hence in '[eri0Tly accessible for charging With refrigetant when Said cover is open The compartnent iS closed at its end remote fron1 the chamber z by a vvall preferably coplanar With the end of the housing Ten0te from the uid cil culating system, and iS Open at its end adjacent the cham ber 26, thus to expose Said chamber to the c001ing eect of reffigerant charged vvithin the companment 28'- leten tive of the charge within the compartment 28 and to provide means for son1e regulation of c001ing effect inlp0sed by the refrigeant charge upon said chamber, a Teticulate or foraminous bae 29 is vertically disposed in transverSe1y-0bstructing relation aCTOSS the compartment 28 adjacent the open end thereof and for adjustn1ent tovvard and away from tlle chamber z, aS by means of Sliding engagement within grooved guides 30 spaced apart on and upstanding along the inner Walls of the C01I1partment. AS Should be obvious, the bame z9 Inay be )()Sitiolled t0 hold the refrigetant charge Within the cpm aTment 28 t ciated vitll and Substantially obstructing one open end of Said housing, Said systen1 including spacedly SupeT posed radiator members, a uid circulating pump' Sup ported by and between the Said IIle111bers, a c001ing cham ber at one end of said n1en1bers, and 0vv lines operatively @onnecting betvveen `Said n1enlbers, puinp, a11d chan1ber for cinculation of uid therethrough ill Teaction to punlp operation, a 1T10tol Within Said housing in siInultaneously dliving Telatiol1 With Said pump and a fan rearwardly ad jacent to the latter, and a cotnpattfnent adapted t(} contain efrigerants associated With said housing Separately from and rearvvardly adiacent said chamber.

9. In an air conditioner having an open end, portable housing fornled With a hinged top closufe, a I10to1- within said hollsing and a fan ill driven l elation With Said Inot0 for the circulation of air through the open ends of the housing, a uid circulating system adapted to cool the air circulated by Said fan, said System C0Inprising in a unitary assenlbly like radiator IT1elTbers spacedly Super posed and detachably nlounted in substantially 0bstructing Telation vvith the open end of the housing through which ail is delivered by Said faT1, upper and lower head ers in each of the Said radiator Ilenbers, a iiow line c0n necting betvveen the upper header of the uppef Ilen1be and the lovver header of the lower n1elnber, a uid circulating pump supported by and between Said members, a 0W line connecting the 10Wer header of the upper member with the intake of Said )I1II a c001ing chan1be at the end of the radiator member assembly remote from said first HOW line, a now connection between the pulnp outlet and the upper end of said chanber, a ow connection between the upper header of the lower member and the 10Wer end of Said chamber, a direct driving connection between Said nT0tor and punlp, and a conpartnent Within said housing separate fronl and opening tovvard Said chamber adapted t0 contain Tefrigerants Refeences cited in the le of this patent UNITED STATES PATENTS 2 o7 389 Eubank Mar. 30, 1937 2,l08,320 lentZ Feb. l 1938 2,164,677 Banke Iuly 4 1939 2 336 840 Brehob Dec 14 1943 

